Toyota Venza: Runnable Signal Malfunction (B2286,P0335)

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function) / Runnable Signal Malfunction (B2286,P0335)

DESCRIPTION

The power management control ECU receives an engine speed signal and information that indicates whether the engine is running or not. It receives the engine speed signal from the ECM via a direct line, and the information about whether the engine is running is received from the ECM via CAN. If the information sent using these 2 methods is inconsistent, this DTC will be stored.

DTC No.	DTC Detection Condition	Trouble Area
B2286	Information received by the power management control ECU via a direct line from the ECM and information received from the ECM via CAN is inconsistent.	AM2 fuse MAIN fuse Power management control ECU SFI system Wire harness or connector
P0335	Information received by the power management control ECU via a direct line from the ECM and information received from the ECM via CAN is inconsistent.	Wire harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

Check the connector connection to the terminal to make sure that there is no abnormality such as a loose connection, deformation, etc.

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

2.	CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

3.	CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ECM)

(a) Disconnect the A41 connector from the ECM.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D42-4 (NE) - A41-7 (NEO)1 D42-4 (NE) - A49-53 (NEO)2	Always	Below 1 Ω
D42-4 (NE) - Body ground	Always	10 kΩ or higher

Tester Connection

Condition

Specified Condition

D42-4 (NE) - A41-7 (NEO)*1

D42-4 (NE) - A49-53 (NEO)*2

Always

Below 1 Ω

D42-4 (NE) - Body ground

Always

10 kΩ or higher

*1: for 2GR-FE
*2: for 1AR-FE

Text in Illustration

Front view of wire harness connector

(to Power Management Control ECU)

Front view of wire harness connector

(to ECM)

for 2GR-FE

for 1AR-FE

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - ECM)

4.	READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Power Source Control / Data List.

(e) Read the Data List according to the value(s) in the Techstream.

Power Source Control

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Engine Condition	Engine condition/Stop or Run	Stop: Engine stopped Run: Engine running	-

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Engine Condition

Engine condition/Stop or Run

Stop: Engine stopped

Run: Engine running

OK:

Stop (engine is stopped) and Run (steering lock is locked) appear on the screen.

GO TO SFI SYSTEM

5.	CHECK POWER MANAGEMENT CONTROL ECU

(a) Reconnect the D42 connector to the power management control ECU.

(b) Reconnect the A41 connector to the ECM.

(d) Check for pulses according to the condition(s) in the table below.

OK:

Tester Connection	Condition	Specified Condition
D42-4 (NE) - Body ground	Engine is stopped	No pulse generated
D42-4 (NE) - Body ground	Engine is running	Pulse generated (1000 rpm: 200 Hz)

Text in Illustration

*1	Component with harness connected (Power Management Control ECU)

REPLACE POWER MANAGEMENT CONTROL ECU

GO TO SFI SYSTEM

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